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Strange Artifacts in MPEG film

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Simon Roughan
Strange Artifacts in MPEG film
on Oct 7, 2014 at 7:48:11 pm

Hello Everyone,
I downloaded a .m2v film from an agency that we have to broadcast.
When I play it in windows media player it looks fine.



but when I try to render the film in After Effects, Premiere or Media Encoder, it has strange green artifacting at 1 place in the film for about a second or so. Its always the same place, and exactly the same is each software. Like this...



Can anyone tell me what is causing this, and what can I do about it?

Thanks in advance
Simon

You know I'm born to lose, and gambling is for fools, but that's the way I like it, baby. I don't want to live forever!


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Todd Kopriva
Re: Strange Artifacts in MPEG film
on Oct 7, 2014 at 8:20:53 pm

What operating system and what exact version numbers for the Adobe applications?

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Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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Simon Roughan
Re: Strange Artifacts in MPEG film
on Oct 8, 2014 at 5:04:59 am
Last Edited By Simon Roughan on Oct 8, 2014 at 5:08:48 am

Hi Todd,
OS is Win 7 pro, Adobe CC 2014.1 (I just updated yesterday). I seem to remember I had this same problem a few years ago. Could it have something to do with the .m2v format?

thx
Simon

You know I'm born to lose, and gambling is for fools, but that's the way I like it, baby. I don't want to live forever!


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Leo Thom
Re: Strange Artifacts in MPEG film
on Oct 8, 2014 at 10:38:12 pm

I have something similar but it's not just 1 second! I think you see my post above yours but I'll let you know if any replies come my way

cheers


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